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Rear spacing has been opened to accept present wheel. Original would have been 120mm. Appears a 5V gear block has been fitted to a hub capable of accepting a 6V or greater block. You may wish to examine the cycle's chainline. Note the spacer behind the fixed cup. Shell may be one of the 66.5mm Raleigh ones.
Note large open space between small cog and dropout.
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Ray's Cycle & Mower operated in downtown Vacaville, California from 1969 to 1984 when the "Mower" portion of the business was relocated and it became just Ray's Cycle.
Shop still in operation today at same location.
https://www.rayscyclebicycles.com/pictures
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