Posted 8 years ago
mowgli191
(171 items)
This jar says Kerr Self Sealing REG. U.S. PAT. OFF. MASON (on the bottom it says AHK. 27. 503.) I do not no what any of that means. If anyone does please comment below with any information. Thanks, it is 5 inches tall
Google "REG. U.S. PAT. OFF" - the information is right there on the web.
AHK. 27. 503 references the number/type of jar.
The AHK stands for Alexander Hewitt Kerr, the founder of the Kerr Glass Co.