Here's another lovely cover from Bryon Peterson. Thank you very much!
The beautiful stamps on this awesome cover were issued on 7th June 2012, entitled "Bicycling". The four colorful se-tenant stamps features a different kind of bike and rider: a young child just learning to ride with training wheels, a commuter pedaling to work, a road racer intent on the finish line, and an airborne BMX rider.
These Bicycling stamps are being issued as 'Forever' stamps. Forever stamps are always equal in value to the current First-Class one-ounce rate (currently @45 cents).
Bearing postmarks of Issaquah and Seattle, Washington (dated 15th Aug 2012), this cover took 8 days to reach me.