No. 10 Envelopes Natural White Linen Finish 70# - 50 Per Package | eBay
Superfine Printing Inc. Classic Linen Blank Note Cards and Classic Linen Envelopes, 4-1/2 X 6-Inches Or 5 X 7-Inches,. This is Not A Fold Over Card. (5 X 7) : Amazon.co.uk: Stationery