[Amps] large Thordarson plate transformer ID

[bill wylde]

I recently purchased a plate supply from
a friend's estate.  Thankfully the supply
is on casters, as it took three of us to move
it in and out of a vehicle!

The transformer is a Multi-Volt Thordarson
with 2,000V/2,500V secondary and 115V/
230V primary.  The Model # is T15P20 and
is marked 1,875 watts.

For the sake of curiosity, I wonder if anyone
could supply an approximate age and possibly
any specs. other than those above.

Thanks in advance,
K9WXR