The envelope is in very good condition; the flap is not sealed.  It is size 6-3/4.

Note: On multiple purchases with shipping costs, I will use the item with the highest shipping cost and then charge $.20 for each additional item, up to a maximum of $3.50.  Any number of stationery items, with few exceptions can ship for $3.50.  If you do have multiple purchases, please wait for my invoice with the adjusted shipping cost.