One detail from the campy 1966 TV version of Batman you may not have noticed is the set designers’ penchant for slapping over-sized, literal, professionally-made labels on everything, whether it’s the “Bat-Sleep” spray seen above or the large labels on everything in the Batcave (even the water cooler) or the huge labels on “secret” passageways alerting you to the presence of a secret passageway (helpful).

Single serving Twitter and Tumblr “Bat Labels” — curated by Aaron Reynolds — is the place to find some of the best examples of Batman ’66 labels. We’ve collected some of our favorites below. (Hat tip to io9.)

Some of these labels raise pertinent questions like, “Can these carrier pigeons read?”

CARRIER PIGEON ENTRANCE CARRIER PIGEON EXIT pic.twitter.com/vx4U9vspBQ — Batman 66 Labels (@BatLabels) November 9, 2015

And how, exactly, did the Joker go about filing for a patent on this?

And why, oh why, does everyone keep labeling their secrets?

ACCESS TO BATCAVE VIA BATPOLES pic.twitter.com/7lADZ6EB0S — Batman 66 Labels (@BatLabels) December 7, 2015

SECRET ELEVATOR TO UMBRELLA SHOP pic.twitter.com/imIzbvoyrl — Batman 66 Labels (@BatLabels) November 20, 2015

BUBBLE GUM ACTIVATED SECRET EXIT FROM CANDY STORE pic.twitter.com/Ado3ZMTXf5 — Batman 66 Labels (@BatLabels) November 16, 2015

SECRET REFRIGERATOR DO NOT OPEN #Batman66 pic.twitter.com/RDfejaMbRM — Batman 66 Labels (@BatLabels) November 8, 2015

RARE ART MAP pic.twitter.com/NHXDVL6mPq — Batman 66 Labels (@BatLabels) December 10, 2015

Other labels are quite useful. Who wouldn’t want to keep their confetti sorted and their rooftop umbrellas thoroughly launched?

METALLIC CONFETTI ASSORTED RED GREEN pic.twitter.com/6TUHU0sBIL — Batman 66 Labels (@BatLabels) December 10, 2015

ROOF TOP UMBRELLA LAUNCHER pic.twitter.com/PPPP35DEQb — Batman 66 Labels (@BatLabels) November 12, 2015

And some of these other labels seem quite specific. Clearly these were special ordered. You’d think the printers would start questioning all the Bruce Wayne receipts for “Bat-” labels.

RARE OLD BOOKS ON THE TREASURES OF THE INCAS pic.twitter.com/4WMVXfUhir — Batman 66 Labels (@BatLabels) November 16, 2015

SURFING EXPERIENCE & ABILITY TRANSFEROMETER pic.twitter.com/iLJLR7gsVr — Batman 66 Labels (@BatLabels) November 17, 2015

UNDETACHABLE GLUE PAD pic.twitter.com/C68eMMo9zh — Batman 66 Labels (@BatLabels) November 10, 2015

INSTANT COSTUME CHANGE LEVER pic.twitter.com/0sd53qPBRZ — Batman 66 Labels (@BatLabels) November 16, 2015

GIANT LIGHTED LUCITE MAP OF GOTHAM CITY #Batman66 pic.twitter.com/lmBTT9hBE4 — Batman 66 Labels (@BatLabels) November 8, 2015

CURRENT CRIMINAL ACTIVITY BAT DISCLOSURE UNIT #Batman66 pic.twitter.com/tdIWtW5qwu — Batman 66 Labels (@BatLabels) November 8, 2015