The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
3M Co. COM 88579Y101 843 4,000 SH   SOLE   4,000 0 0
A.H. Belo Corp. COM 001282102 1,692 367,756 SH   SOLE   367,756 0 0
Abbott Laboratories COM 002824100 5,500 74,972 SH   SOLE   74,972 0 0
AbbVie Inc. COM 00287Y109 7,102 75,094 SH   SOLE   75,094 0 0
Aberdeen Em Mkts Eq Inc Fd COM 00301W105 90 13,163 SH   SOLE   13,163 0 0
Adams Diversified Equity Fund COM 006212104 6,410 384,549 SH   SOLE   384,549 0 0
Advance Auto Parts Inc. COM 00751Y106 32,153 191,011 SH   SOLE   191,011 0 0
AGCO Corp. COM 001084102 11,891 195,601 SH   SOLE   195,601 0 0
Alpine Total Dynamic Div Fd COM 00326L100 3,583 408,040 SH   SOLE   408,040 0 0
Antares Pharma Inc. COM 036642106 336 100,000 SH   SOLE   100,000 0 0
Apple Inc. COM 037833100 597 2,645 SH   SOLE   2,645 0 0
Baker Hughes a GE Co. COM 05722G100 11,073 327,301 SH   SOLE   327,301 0 0
Becton Dickinson & Co. COM 075887109 364 1,395 SH   SOLE   1,395 0 0
Berkshire Hathaway Inc. Del CL A 084670108 640 2 SH   SOLE   2 0 0
Berkshire Hathaway Inc. Del CL B New 084670702 24,353 113,739 SH   SOLE   113,739 0 0
Brightview Holdings Inc. COM 10948c107 7,331 456,745 SH   SOLE   456,745 0 0
Calamos Strategic Total Return COM 128125101 286 21,297 SH   SOLE   21,297 0 0
Capital Southwest Corp. COM 140501107 27,615 1,454,960 SH   SOLE   1,454,960 0 0
CBS Corp. Class B COM 124857202 26,180 455,700 SH   SOLE   455,700 0 0
CDW Corp. COM 12514G108 4,302 48,383 SH   SOLE   48,383 0 0
Central Securities Corp. COM 155123102 1,100 37,275 SH   SOLE   37,275 0 0
Citigroup Inc. COM 172967424 1,104 15,385 SH   SOLE   15,385 0 0
CKX Lands Inc. COM 12562N104 767 75,968 SH   SOLE   75,968 0 0
Comcast Corp. New CL A 20030N101 18,058 509,976 SH   SOLE   509,976 0 0
Covanta Holding Corp. COM 22282E102 166 10,200 SH   SOLE   10,200 0 0
CSW Industrials Inc. COM 126402106 15,093 281,065 SH   SOLE   281,065 0 0
Diageo PLC Sponsored ADR SPON ADR NEW 25243Q205 301 2,125 SH   SOLE   2,125 0 0
Dick's Sporting Goods Inc. COM 253393102 7,584 213,755 SH   SOLE   213,755 0 0
Disney (Walt) Co. COM 254687106 641 5,484 SH   SOLE   5,484 0 0
Dollar Tree Inc. COM 256746108 11,538 141,482 SH   SOLE   141,482 0 0
Exxon Mobil Corp. COM 30231G102 378 4,441 SH   SOLE   4,441 0 0
General Amer Investors Co. Inc COM 368802104 1,050 28,401 SH   SOLE   28,401 0 0
Hamilton Beach Brand Hldg C COM CL A 40701T104 14,191 646,816 SH   SOLE   646,816 0 0
Hancock Whitney Corp. COM 410120109 329 6,920 SH   SOLE   6,920 0 0
Henry Schein Inc. COM 806407102 19,419 228,375 SH   SOLE   228,375 0 0
Int'l Business Machines Corp. COM 459200101 19,750 130,614 SH   SOLE   130,614 0 0
Johnson Controls Int'l PLC COM G51502105 20,088 573,932 SH   SOLE   573,932 0 0
JP Morgan Chase & Co. COM 46625H100 324 2,871 SH   SOLE   2,871 0 0
Microsoft Corp. COM 594918104 9,415 82,318 SH   SOLE   82,318 0 0
Motorola Solutions Inc. COM 620076307 12,004 92,242 SH   SOLE   92,242 0 0
Nacco Industries Inc. COM 629579103 217 6,625 SH   SOLE   6,625 0 0
Nexeo Solutions Inc. COM 65342h102 6,179 504,405 SH   SOLE   504,405 0 0
Procter & Gamble Co. COM 742718109 484 5,820 SH   SOLE   5,820 0 0
PTC Therapeutics COM 69366J200 208 4,421 SH   SOLE   4,421 0 0
Ralph Lauren Corp. COM 751212101 9,768 71,014 SH   SOLE   71,014 0 0
Royce Global Value Trust Inc. COM 78081T104 962 91,545 SH   SOLE   91,545 0 0
Safeguard Scientifics Inc. COM 786449207 7,629 815,955 SH   SOLE   815,955 0 0
Sanofi-Aventis RIGHT 12/31/2020 80105N113 23 42,528 SH   SOLE   42,528 0 0
Scholastic Corp. COM 807066105 30,632 656,077 SH   SOLE   656,077 0 0
Spartan Motors Inc. COM 846819100 7,707 522,481 SH   SOLE   522,481 0 0
Spirit MTA REIT COM 84861U105 1,572 136,498 SH   SOLE   136,498 0 0
Spirit Realty Capital Inc. COM 84860W102 11,358 1,409,160 SH   SOLE   1,409,160 0 0
Starbucks Corp. COM 855244109 300 5,280 SH   SOLE   5,280 0 0
Stericycle, Inc. COM 858912108 6,690 114,000 SH   SOLE   114,000 0 0
The Brinks Co. COM 109696104 11,072 158,737 SH   SOLE   158,737 0 0
The Howard Hughes Corp. COM 44267D107 345 2,775 SH   SOLE   2,775 0 0
Treehouse Foods Inc. COM 89469A104 5,379 112,405 SH   SOLE   112,405 0 0
Tri-Continental Corp. COM 895436103 282 10,130 SH   SOLE   10,130 0 0
Trinity Industries Inc. COM 896522109 21,382 583,578 SH   SOLE   583,578 0 0
Vereit Inc. Note 3.75% 12/1 02917TAB0 10,955 10,861,000 PRN   SOLE   10,861,000 0 0
Wells Fargo & Co. COM 949746101 523 9,950 SH   SOLE   9,950 0 0