I discovered, too late, that my latest (August 2013) shipment, after long backorder, of the 100 pack Museo large artist cards & envelopes contained envelopes with no adhesive. Additionally the envelopes are about 1/8" larger on the short side than previous envelopes from this company.
Ordered from B&H but due to length of time, they will not credit.
So folks if you are ordering this product check it out on receipt.
As for me I'm switching card stock (slightly smaller but works with standard, commonly available envelopes) to Moab and ordering elsewhere.