In case anyone is confused by my above-referenced thread, this should help:
From 1971 to 1976, Barnum Fibre Co. Inc., produced the fiberglass dome portions of the shakers, regardless of whether they were the 71/72 style with the flapper door glued in place or the 73-76 style with the rivet plate and frame glued in place. They employed the same molding part number through the entire production run. There is no way to differentiate what year the dome came from since they were not date coded. The only unique-to-71/72 parts were the metal base and the flapper door assembly.
I used a 1976 fiberglass dome section to restore this 1971/2 shaker assembly. (And I am assuming it was 1976 and not 73,74 or 75 based solely on the "400" decal that was in place when I located it, since there are no date codes on these fiberglass domes).
Hope that is of some help, especially to anyone who may need to restore one of these themselves in the future.
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