| Source: The Bethesda Herald, 1903-1964 (incomplete run) Location: St.L. / 05 / B46 | |
 | |
| Corporate Name: | Supplementary Spiral Spring Co. |
| Address: | 4524-4526 Delmar Ave. |
| Advertisement: | yes |
| Date of Publication: | June 1906 |
| Page: | 18 |
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.