Mad Professor Old School 21 Combo
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Not enough sold data for a typical price — 10 sales on record all-time.
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Not enough sold data for a typical price.
For sale right now
The best-priced as cards, a row of them; every other ad as a line, by ask. Each ask is the seller’s own number; the platform’s mark opens the listing. Each one says when we last confirmed it at its source: the price and availability are from that visit, so check the marketplace before you go.
Nothing live right now on the platforms we track.
Price history
Every recorded sale, one point each: 10 of them, placed by the day the ad went up. Too few sales to draw a trend through them without inventing one, so the points speak for themselves. Condition is mixed, so some of the spread is a mint against a fair rather than the market moving.
Recent sales by listing date
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 16 May 2024 | €686$795 as sold | mint |  United States | Reverb | Details |
| 5 May 2024 | €1,360$1,577 as sold | mint |   Italy | Reverb | Details |
| 11 Mar 2019 | €1,550$1,804 as sold | excellent | United States | Reverb | Details |
| 24 Sept 2018 | €1,375$1,592 as sold | new | Italy | Reverb | Details |
| 7 Apr 2017 | €816$950 as sold | very good | United States | Reverb | Details |
A date is the day the ad went up. Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Show all 10 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 17 Feb 2024 | €624$700 as sold | mint | United States | Reverb | Details |
| 10 Nov 2023 | €647$750 as sold | mint | United States | Reverb | Details |
| 25 Jun 2016 | €1,034$1,204 as sold | excellent |  Canada | Reverb | Details |
| 30 Sept 2015 | €1,550$1,795 as sold | new | United States | Reverb | Details |
| 24 Sept 2015 | €2,147$2,500 as sold | new | United States | Reverb | Details |
A date is the day the ad went up. Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.