NAD 3155 and 4155 question

Probably an obscure question, but I need the original MSRP for the 3155 and the 4155 for insurance purposes. NAD has not (of yet) responded to any of my requests for that information. Thanks in advance for any assistance.
Not obscure at all. Check Audiogon Bluebook listing.
They retail prices of both components.
Both pieces each listed for $448.00 back in 1984.

Thank you...I look at the Audiogon site often and yet never thought to use the Bluebook feature. Sorry for my senior moment! And no offense to any seniors.