| Literature Title | Date | Page | First # | Models |
| Parts Prices 1928 | Oct-1927 | 1 | Title page | |
| Parts Prices 1928 | Oct-1927 | 2 | Warranty | |
| Parts Prices 1928 | Oct-1927 | 3 | 113 | 9,10,12,20,20C,21,30,30-A,32,33,35,50 |
| Parts Prices 1928 | Oct-1927 | 4 | 4606 | 9,10,12,20,20C,21,30,30-A,32,33,35,50 |
| Parts Prices 1928 | Oct-1927 | 5 | 4836 | 9,10,12,20,20C,21,30,30-A,32,33,35,50 |
| Parts Prices 1928 | Oct-1927 | 6 | 7690 | 9,10,12,20,20C,21,30,30-A,32,33,35,50 |
| Parts Prices 1928 | Oct-1927 | 7 | 8131 | 9,10,12,20,20C,21,30,30-A,32,33,35,50 |
| Parts Prices 1928 | Oct-1927 | 8 | 8513 | 9,10,12,20,20C,21,30,30-A,32,33,35,50 |
| Parts Prices 1928 | Oct-1927 | 9 | 4210 | Spkrs 5V,6C,E,G,H,K,L,M,R,VE-0,VE-E |
| Parts Prices 1928 | Oct-1927 | 10 | 7883 | Spkrs 5V,6C,E,G,H,K,L,M,R,VE-0,VE-E & B PU |