Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000764624 | |||
| Series S000016649 | Western Asset Mortgage Backed Securities Fund | ||
| Class/Contract C000046506 | Class A | ||
| Class/Contract C000046507 | Class B | ||
| Class/Contract C000046508 | Class C | ||
| Class/Contract C000046509 | Class I | ||
| Class/Contract C000046510 | Class 1 | ||
| Class/Contract C000062461 | Class FI | ||
| Class/Contract C000062462 | Class R | ||
| Class/Contract C000088509 | Class R1 | ||
| Class/Contract C000118880 | Class IS | ||
IRS No.: 000000000 | State of Incorp.: MD | Fiscal Year End: 0731
Type: 497 | Act: 33 | File No.: 002-96408 | Film No.: 121249548