What is the most condition sensitive set of cards?

[Jim VB]

I think there were also certain series in the 1933 Goudey set that were printed on inferior cardboard and, therefore, condition sensitive.

But they're still pretty easy to find.

[Bobsbats]

T204 is my choice....

[jbsports33]

early Cuban issues and many minor league sets like Zeenuts,

major set would be the T205 cards

Jimmy

[Fred]

T200s
T222s

Really thin stock

[Leon]

Another would be E271 Darby Chocolates. The only major find of these was about 50 of the (60-75?) singles known, not counting the half a dozen or so full boxes. They were found in a barn, tacked to the walls, if I remember correctly. (or had been tacked to the walls at one time) This is about their average condition

[Michael Peich]

Fred beat me to it, but I would second T222s. That thin photographic paper stock creases if you look at it the wrong way, to say nothing of breaking off at the corners.

[sgbernard]

Like T205, the colored-border cards like T210 and T211 show even the slightest nicks to border a million times more than a T206 or caramel card with white borders.

T209 B&Ws have a bad flaking problem: I've not seen another issue that flakes like those.

But above all, someone's gotta mention the George Millers (R300s). If you want to talk about distribution affecting a card, those hole-punched cancellations are killer.

[Orioles1954]

T213-2 more than T213-1

[fkw]

E93, E94, E97, T209 B&W surface chipping
T222, T200 corners break off, crazing, creases, curling
N172 fading (pink)
R308 and other sun/spit photos... developed wrong
Schapira Candy and E105 sometimes folded to get into package
M101-2 folded over the years
T3 pinholes
Most W cards and coupon cards.... ripped instead of cut
Postcards used with postmarks on front sometimes
R300 and some E121 candy... redemption punched
4 in 1 Exhibits, T202, etc. cut into individual cards, some others had corner coupon removed
Candy box cards cut without border etc.
R318, V300, E125, Scrapps, R&S, etc. punched out, or missing background or stands or even pieces (hands, bat)

[canjond]

Lections - most are 1s or 2s with only 2 cards that have graded a 5 and 6 respectively.

[sox1903wschamp]

For me, E-107 and T-204.

[tbob]

No one mentioned the very sensitive T207s? Besides the crazing problem, a tiny bend or wrinkle looks like Route 66 on these brownies.
1971 Topps set is a condition sensitive killer too.

Wow I guess there is no King to the sets.. Alot of answers and all a very vaild. I am sure there are far more so lets wait and see.

[Zach Wheat]

Along with T200's, T207's and others previously mentioned, I would also have to give consideration for V61 Type I's as being condition sensitive. The card stock is paper thin, cards always seem to have wrinkles as well as food stains on the back.

[brianp-beme]

I have never seen a 1940 Hughes Confection card that looked decent. These were supposedly placed right against ice cream packaging, so you can imagine that the end result is not pretty, perhaps something akin to the card having been dragged across a gravel road and then left face up and exposed to the sunlight.

Brian