The scan when enlarged is not so easy to read but the apparent size, your description, the ink color with pooling, and general appearance might suggest a stamp. Yes, there were facsimile signatures back then.
I know there were faksimile signatures, that was not the question :)
The question was if it was normal with autopen?
When I examine the back of the photo I clearly se a press to the signature that stamp dont give. Thats why I was wondering on if it could be autopen - or real.
Autopens were in use by the 1950's although I seem to recall some 1940's William Bendix 3x4 that appears Autopenned or the like with vibrant blue fountain. This ink color could be indicative or a problem, and the indent if very even and deep could as well, but the images do not allow me to read surfaces. This does not appear quite like those Bendix though. The pressure appears very even and slow. You photo has too much texture or not enough resolution/light to say much. The color is also off in the first images. There appears pooled ink in the middle of a stroke (stamp indication) and even cross over but I have seen this appearance on facsimiles which are often on this speckly paper (which does not help us). Better, flat on high res scans will help clear this up. Through the mail is not encouraging. She did as far as I know employ a secretary, as Joe mentioned.
Yes, I was agreeing with Joe re secretarials. I don't know of any either. Your postcard I would need to see in hand - the scan is not high enough res for me to see/say anything other than it looks unusual - not quite human - her signatures can be remarkable but this even depth of stroke is weird.
Thank you. The texture of the paper is preventing me from saying much else. I would expect if she signed slowly with a fountain pen to the degree the indent suggests on such paper her signature would be more angular and unusual. Is the indent really very even?
No, its not a good scanner sadly.
The dent in the back after presure from the pen is almost even, but lighter or not noticeble at the end of Audrey.
That indicates that it is human - but it is not easy to say.
The only thing I feel surtan about is that it is written, but not sure if it is by hand or autopen.
Is the indent there but no ink? At the spot you mention - the "y"
There is ink but no vissable indent on the back
The scan does not show the ink well - buy it is there buy just light and thinner then the rest
or something I never thought of .... could it be secreterial?