If its a poster, you will have a stamp on the back of where it was made/reproduced. If its an oil painting, it will be on heavier paper, and more than likely, it will be an original. Although, I've never seen one in person, there is a web site that will tell you more. www.rosamond.com.
She worked not only with watercolors, but did several oil and guauche works. They vary in size, but some of her oil paintings are quite large.
Get a very strong magnifying glass or loupe and see if it is pixelated. If so, it is a print.
While it is still liquid you can tell by smell. The water based will have very low odour, oil based has heavy odour. Once applied and dried there is no way to tell difference.
Acrylic is not water soluble once dry. Watercolor can be reactivated with water.Dilute a small amount of paint in the normal manner for painting and make a brush stroke on a piece of scrap paper. Wash out your brush. Let the paint stroke dry for 20 minutes and then try to re-wet it with a brush full of water. If it re-wets and smears, it's watercolor. If it remains untouched, it's acrylic.
I'm not trying to throw you off. But I have a beautiful Peacock water color dated '78 by Chiu Weng. Another person I ran across has a watercolor called "Goddess of Mercy" dated '78. So there are several of us now trying to find out who Chiu Weng is.
i have a wallace nutting print called the Meadow Gate...signed can someone tell me the value of this painting? thanks....email me back at tovaroc@gmail.com, as i have four of them....thank you
Get a very strong magnifying glass or loupe and see if it is pixelated. If so, it is a print.
how can you tell the difference between a tortoise and a turtle by shell in picture
Can you tell the difference between Vyvanse and Concerta in a drug test
Vending machines have laser scanners that can tell the difference between the bills.
you can tell the difference between right and wrong from the little voice inside your head
please tell me the difference between thickness
no but you can tell the difference by taste
No difference
tell me the answer
tell me
tell me
You have your doctor tell you what you have.