You might try contacting the author of this website. There is contact info there. It is at the end of the paragraph to the right of the blue heart and vine image on the home page.
http://sites.google.com/a/imperialartglass.com/www/homeThe ring wear on the underside of the piece that appears in the last image gives the appearance that it may have some age to it. The clean pontil, although not completely conclusive would, combined with the wear underfoot, tend to lead me away from contemporary studio glass. It is often difficult to tell from pics.
I have done some research, which is certainly not conclusive because my knowledge level of it is fairly limited, but it could possibly be a piece of Imperial art glass. The glass bears a resemblance to a version of the Monochromatic Lead Lustre line. Your location in New York is also geographically good, as Imperial was located in Ohio. Additionally, the lack of a bunch of other contemporary glass at the estate sale would have me feeling good also.
The shape is quite similar to a couple of examples I found of Imperial. The size and glass weight also seem to fall in line with examples I have seen at shows and such.
I know that this type of glass is also produced by contemporary companies, but the modern versions I have seen are typically thin glass, larger pieces, with ground tops and no pontils..... or occasionally rough finished pontils which are snapped and flamed to get rid of sharp edges..... but not ground such as this.
I think sending them an email and asking if you can send images would be worth while... It appears to be a nice piece of glass. It is tough to tell without handling it, but I would probably have spent $40 on it also... even if the wife was not in agreement

. Sometimes you just have to listen to the little voice.... every time I do, it has paid of greatly.....
Let us know what they say if you do contact them.
Craig