If it's supposed to have a 10 horse, then it's a model 105. Your 149 most likely has a ported hydro pump, and the 105 does not. The rest of the rear axle is almost the same, with the exception of the brakes. The 105 has an internal brake, while the 149 has external disc brakes.
All in all, the paint is rough but it looks like a really solid machine with little rust. Might be worth it if the engine is good.
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'70 107 with k301 engine swap
'71 106 with 38" deck
'70 147 R with factory replacement k321, 42" deck
'61 Original with 38" timed deck
'63 70 "pinkie"
1863 with 54" deck
'46 Farmall H, '50 Farmall Cub
105 x2 (parts)
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