You're welcome for the responses, Viking66. Great polishing job!
Here are replies to your comments and answers to your recent queries:
1) By "main filter" do you mean the filter bag? I read somewhere that it was not advisable to launder the filter bags due to the sizing that was originally sprayed on the material. Instead, a thorough vacuuming would be better. New ones do appear on eBay from time to time.
2) The exhaust filters--to my knowledge--are all disposable; not meant for cleaning. Do make sure it is in the correct position (see old thread as referenced in my previous reply).
3) Glad you found the date stamp. You were right on when you said you had a '49!
4) I do not know of any gasket that goes in the hose inlet. I'm not an expert by any means, so someone that is more knowledgable will know for sure.
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You may also want to look for your serial which is composed of 2 letter affixes and 5 digits. It is stamped on the top of the front trim. For the ratings look at the bottom of the front trim.
Aerus seems to be very secretive about its serials so a date list has never been made available to the public (unlike Kirby, Hoover, and other companies). Its personnel will attempt to provide information on newer models--over the last 30 or so years--but do not provide information on older cleaners (serials have been reused over the years). Anyway, knowing your serial would be good for identification in case your cleaner were ever stolen.
You should also try to purchase an owner's manual for your cleaner at some point. I don't believe they were published every year, so I believe one with a 1947 copyright year would be what you'd want. Beginning in 1950 the style was changed to a booklet form. I have seen these copyrights of it on eBay: 1950, 1951, and 1953.
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Here is a photo I meant to post before of a Model XXX and its original attachments (sans one of the wand sections). The eBay listing from which it came did not mention a year, but it appears to be sometime in the early '50s going by the blue-gray bakelite upholstery tool and dusting brush; and the covering of the rug cleaner. The "XXX"-pattern hose is supposedly the only pattern of hose made for the Model XXX, but I am beginning to wonder if the LX hoses were used on the latter Model XXXs.
