Here's some pics showing my other one, third cutting deck, and ID plates. The third cutting deck is a slightly later model with a different style ID plate and larger wheels. The diferent style ID plate may be able to give an indication of the age. It also has a disc with 4 blades, where the one still to be restored has a single piece slasher blade, and the restored one has a two piece slasher blade.

The serial numbers are:

The unrestored mower- 271

The restored mower- 524

The third cutting deck- 765

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[Linked Image]
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[Linked Image]