25W (switchable to 10W) compact Rectifier head.
Marks that can be entered for this maker: Serial number (plate), Transformer code, Born-on / QA sticker.
Nothing predates 2011; components only push the date later.
Sold-listing reading: fair $336, good $1,052, excellent $1,467 USD · 11 sold listings · as of 2026-10-15. 11 of the 13 lots are the amp; the spread is wide (336-1627 USD) for a current-production head, and the tiers do not separate: two Very Good lots (1468 / 1467) sit at the top, above every Excellent lot's median (1052), because the Excellent bucket contains both a 336 USD outlier and a 1627 USD one. Read n_lots and the range, not the tier order. Excluded: a 'Mini rectifier 1x12 - 19 slant' cabinet (705 USD) and a 2021 'Mini Rectifier, Recto-verb 25 head' whose title names two different Mesa models (1006 USD). Alignment verified: PRICE DROP markers at the same two positions (9 and 12) in both arrays. Reverb exposes the price and condition but not the exact sale date, so asof = measurement date; no Fair/Poor sale observed; fair = lowest sold price in sample Condition tiers normalised to monotonic order (the source sample had a condition tier below the lower one).
Evidence: Blue Book of Guitar Values — mesa boogie · reverb.com