Vintage Hollywood Costume Long Shirt

Toadstool Farm Vintage

This comes from an enormous collection of Old Hollywood Movie Costumes I was lucky enough to stumble across. More about those later after the measurements so please read on...
Long man's shirt in what looks and feels like an off white cotton muslin. Possibly a sleep shirt but makes me think more like worn over snug trousers with tall boots. Makes me think of steampunk style wear.  Has a Nehru collar and long side slits. Pulls over the head.  My best guess as to age of this is circa 50s or 60s.  Was obviously intended for a man. This one has no identifying tags or Film Studio labels. 
Great vintage condition. Structurally its in great shape, some long treads at the seams as they are not serged or even pinked, but the seams all appear to be holding up and I dont see anywhere that needs stitching. No holes or anything like that. There are several marks and stains however, which were probably intentional to make this look aged. Or they just happened during filming. Please note that all items in this Costume section may have minor other flaws ( or example; missing snaps, small areas of loose seams, pinholes, etc..)  that I have not listed as its just not possible to find and or list every minor thing as these have lived quite a life! Priced accordingly, As Is and Final Sale.
Measurements taken lying flat. Doubled at bust, waist and hip.
Shoulder to shoulder: 27"
Bust ( or chest): 46" 
Waist: 46"
Hip: 46'
Shoulder to bottom hem: 41.5"
PLEASE READ: I acquired an absolutely enormous collection of Hollywood movie costumes. Ranging across the board from Paramount, Universal, Unified Costumers and more. The last known film much of the items were used in was Lawrence of Arabia but we have no way of knowing which ones and there are others from other films. Most likely they were used on extras or smaller roles, I have not come across anything I can pinpoint to a major name from that film.  Many of these were made much earlier, and I have found dates written on tags within from as early as the 1940s, though I believe some are even earlier.  I have given as much information as I can about each item in the listing. Much has been lost to time however.  That said, these are an extraordinary piece of movie history and I'm honored to be a part of it all.
Please note: These are vintage, preworn and/or preloved items. I do my best to list any issues, but signs of wear should be expected. Please feel free to convo me with any questions. I'm truly happy to help in any way possible and I'm always up for a chat. Any accessories shown, including crinolines, are for display only, not included unless otherwise stated.