Dynamic Instrument Corp Charger Unit Plug B 42-103 Photography Flash Sync Cord ?

Description

Dynamic Instrument Corp Charger Unit Plug B 42-103 Photography Flash Sync Cord ?
Unknown for exact use:
Vintage "Dynamic Instrument Corp. Charger Unit" Plug for Photography/Flash/Sync Cord? The reason I suggest these options is because this plug/unit was stored in the
midst
of my other retrieved photography items, mainly stored with the flash units (I bought out an entire store that was in business for over 50 years).  I will enclose all the specs I know and leave these elements to the bidder/buyer to interpret: 5.8 VDC/45AM./UL/Model B 42-1039/120VAC/60Hz/6W, made in USA. Vintage hard Plastic which may be Bakelite material.
CONDITION:
as above, untested
COLOR:
Black
FABRIC/MATERIAL:
Metal, plastic, electronics.
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