HC&M: Phelps patent “unit lock”, monogrammed WHH


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Name Phelps patent “unit lock”, monogrammed WHH



Catalog ID HCM2350
Year circa 1899
Description Large cast iron door plates with WHH cast into each. Exterior handle contains a lock. Interior plate has a small switch. Blue/black metal finish with minor rust. Requires plate for door jam (missing).

Inside of one plate marked "PATD JUNE 6, 1899".

See patent US626339A.
Added 2012-01-02 00:56:24 (updated 2022-09-30 14:27:31)