florence knoll executive desk - the price is right?

my father (an architect) recently decided to unload some of his massive collection of mid-century furniture. he's using a reputable auction house in nyc to do the dirty work. however, the other day he was offered $1,200.00 from a prospective buyer for this (not the actual table)

does that seem like someone (not my dad) is getting a dealio? 

the details:

Knoll Executive Table Desk, #2485

Matched grain wood

bought in 60's for $4697

4 pencil drawers, 2 on each side

central chrome pedestal feet

label on bottom

72"d 27"w 28 3/8" h