2 models, mixed materials, Northrop, 1970s, both 1:40 scale, approximately 500 and 435 mm long,

Sell probability TheBasis model · trained on recorded passes

69% chance this lot finds a buyer · market base rate 72%

Of the 92,019 held-out lots the model scored about 69%, 65% sold.

Modeled from the house, the sale type, the artist's record and the estimate's position — not a view on the work. Subscribers see each factor and its sample. See plans. Model data through 2025-09-15.

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Lightweight Fighter Program: Pair Of Northrop In-house Models., 2 models, mixed materials, Northrop, 1970s, both 1:40 scale, approximately 500 and 435 mm long,. Bonhams, 8 Jul 2023, lot 7. estimate $1,000–$1,500, unsold at time of record. TheBasis.Art, TB-2026-393293.

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From the same sale Space History · Jul 2023

Comparable results nearest sold works, same medium & price band

The closest sold results by price, artist, and medium — the appraiser's comp set, generated from the corpus. All figures converted to USD at current reference rates.