From the Dictionary of Nautical, University, Gypsy and Other Vulgar Tongues first published in 1859.
Noah’s Ark: a long closely buttoned overcoat, recently in fashion. So named by Punch from the similarity which it exhibits to the figure of Noah and his sons in children’s toy arks.
(I assume they are taking about Punch as in Punch and Judy.)
It could refer to “Punch” the satirical magazine. According to a certain on line encyclopaedia, it was first published in 1841.
Interesting! I’ll have to check that out! Thanks!
C.J.