From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Catalogue page illustrating various types of Erie suppressors for spark plugs and distributors.
| Identifier | ExFiles\Box 168b\1\ img142 | |
| Date | 30th December 1938 guessed | |
| ERIE SUPPRESSORS TYPE L-2 SPARK PLUG 1 5/8" 7/8" 1/2" 23/64" Installation of Type A Midget Suppressors TYPE S-1-B SPARK PLUG .443" 2 1/8" 1.156" 5/8" TYPE A-2 SPARK PLUG TYPE S-5 DISTRIBUTOR 1/4" 1 25/32" 1/8" Installation of Type L-2 Suppressors TYPE D-7 DISTRIBUTOR .300" 1 1/8" 2 1/8" 2 1/4" 7/8" 1/4" 2 | ||