4x6 inches please look at all pictures to see the condition I'm the original owner and would be happy to answer any questions or send more photos if you have any specific concerns I am happy to answer any questions this sheet is original vintage unused intact and as all research and advice I've been able to find this sheet is rare I have yet to find many like it and priced accordingly however if you are able to find more like it in similar condition let me know or send an offer with the link and I will definitely try to complete or match lower prices