Misprints are especially common for popular models, as the Rocket electrics (H53/H54/H56/H59), or the Archtone acouctic archtops (H1213/H1214/H1215).
I even checked a couple of guitars with double date stamps, one was stamped 19.
- If your guitar is an electric, most models produced after 1960 (and all cutaway) have a laminated top and/or body.
Older "full box" archtops designed from acoustic models still were made from solid woods.
I believe the "F'" and "S" may have stood for first and second half of the year." Photo below : this H22 bass is from 1964 Photo below : this flat top guitar is from 1957.
There is some variation in theses date stamps, (in an oval box on some pre-war models), but usually all guitars had one. Date from pickups On electric guitars with "De Armond" pickups, you should be able to find a precise date stamped on the back of the pickups, or on the back of the pickguard (some screws to remove).
From what I have gathered on your site this indicates that it is an Airline. They were used to keep together various parts of the same guitar on the assembly line.
As they were building similar models on the same line at the same time, we often see this kind of glitches between the model and the stamped number.
Photos below : solid wood on an acoustic H1311, laminated on an electric H58 - No known professional is specialized in Harmony parts only.H1 H1141 H1203 H1213 H1214 H1215 H1260 H1265 H1266 H1310 H1311 H1325 H1327 H14 H1407 H1414 H1415 H1456 H1457 H15 H15V H162 H165 H16B H16R H16W H17 H173 H174 H19 H22 H22/1 H27 H37 H38 H39 H41 H42 H44 H45 H46 H47 H48 H49 H50 H51 H53 H53/1 H54 H54/1 H55 H56 H56/1 H57 H58 H59 H59/1 H60 H62 H63 H64 H65 H66 H68 H7 H70 H71 H72 H73 H74 H75 H76 H77 H78 H79 H802 H81 H82 H82G H88 H929 H945 H950 H954 H956 - If you're a buyer, the value is the max price you are ready to pay to have it.If you're a seller, the value is the minimum amount you accept to sell it.. You can check ebay for completed sales for the same model, but value on ebay is not value in a shop or elsewhere, for reasons.Outside of a completed transaction, value has no meaning, so please do not ask me to value your guitar. Harmony instruments were produced on an industrial scale.Even the less common models can't be considered "rare".
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