That Model 37 was made in 1976, and most likely has the normal/standard roll-engraving on the sides.
However, that year Ithaca also made cased Bicentennial Model 37's, which carried real engraving.
The 20ga Model 37's are made on a scaled (small) frame (I have one), and a standard 20ga M37 in primo condition will generally change hands in the neighborhood of $400.
Although several M37 Bicentennials are "priced to sell" in the $1500-$2K area, a few that have actually sold at auction have only brought around $600-$700, aka: reality vs. "pie-in-the-sky".
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