Abbreviations and explanations at the bottom of the page. Thanks to ethanej for the image rips and thanks to ignasia7 for the data.

Image	Name	Buy	Sell	Def	Apr	Who	Found	Description	Cursed
	Bunny Ears	750	375	15	15	Maribel, Aishe
	Canny Cap	0	-		33	Hero, Maribel, Ruff, Sir Mervyn, Aishe
	Duplic Hat	0	3,850	25	2	Maribel, Ruff, Sir Mervyn
	Fur Hood	500	250	11	13	Hero, Kiefer, Maribel, Ruff, Sir Mervyn, Aishe
	Golden Tiara	0	8,500	43	50	Maribel, Aishe
	Great Helm	45,000	22,500	45	30	Hero, Aishe
	Hairband	100	50	4	10	Maribel, Aishe
	Happy Hat	0	10,000	37	-17	Hero, Maribel, Ruff, Sir Mervyn
	Hardwood Headwear	120	60	6	-15	Hero, Kiefer, Sir Mervyn, Aishe
	Haywire Helm	0	900	42	8	Kiefer, Ruff, Aishe
	Hermes' Hat	0	2,500	24	8	Hero, Maribel, Ruff, Sir Mervyn
	Iron Helmet	1,100	550	16	15	Hero, Kiefer, Sir Mervyn, Aishe
	Iron Mask	3,500	1,750	22	-10	Hero, Aishe
	Iron Pot	0	-	9	7	Hero, Kiefer, Ruff, Sir Mervyn
	Leather Hat	65	32	3	2	Hero, Kiefer, Maribel, Ruff, Sir Mervyn, Aishe
	Mad Cap	0	4	8	5	Hero, Maribel, Ruff, Sir Mervyn, Aishe
	Mask of Implacability	0	-	255	-15	Hero, Maribel, Ruff, Sir Mervyn, Aishe
	Metal King Helm	0	10,000	60	38	Hero, Ruff, Sir Mervyn, Aishe
	Mythril Helm	10,000	5,000	32	17	Hero, Kiefer, Maribel, Sir Mervyn, Aishe
	Pillager's Helmet	4,500	2,250	25	15	Hero, Ruff, Aishe
	Pirate's Hat	2,800	1,400	19	21	Hero, Ruff, Sir Mervyn
	Platinum Headgear	6,100	3,050	28	42	Hero, Aishe
	Pointy Hat	70	35	5	-2	Hero, Kiefer, Ruff, Sir Mervyn, Aishe
	Pyros Helm	0	-	53	33	Hero, Aishe
	Raving Mad Cap	0	-	13	8	Hero, Maribel, Ruff, Sir Mervyn, Aishe
	Seacow Sallet	35,000	17,500	40	26	Hero, Ruff, Aishe
	Shellmet	0	125	8	3	Hero, Maribel, Ruff
	Silver Tiara	450	225	14	25	Maribel, Aishe
	Slime Crown	0	-	31	24	Hero, Kiefer, Maribel, Ruff, Sir Mervyn, Aishe
	Sun Crown	0	-	52	35	Hero, Kiefer, Maribel, Ruff, Sir Mervyn, Aishe
	Thinking Cap	0	10,500	37	21	Hero, Sir Mervyn, Aishe
	Top Hat	1,200	600	17	15	Hero, Sir Mervyn
	Turban	410	205	12	2	Hero, Kiefer, Ruff, Sir Mervyn, Aishe

B = Battle (passive)
Target = Hits Group or All
U = Use in battle to case
L = Level to use (for special Tablet earned equipment, note not all have an
actual limit, and for them I use 1 as the base level, keeping
the abbreviation to note it's special to the remake and
specific to traveler's tablets)
R = Resistance
I = Immunity
C = Cursed
H = Heals (both HP and MP) per use, or as specified otherwise
On Hit = Weapon effect that triggers when attacking
R = Attack change if equipped to Ruff, as some weapons Ruff can equip will
lower his damage output (useful in some situations...as Ruff's
Poison Needle alternative without worry about instant death. Useless at
high Strength values.)

Reduction Acronyms:
F = Fire Group, or Frizz/Sizz/Bang Properties (always grouped together)
C = Crack property
W = Woosh property
FB = Fire Breath, or Fire Property
IB = Ice Breath, or Ice Property
M = Maelstrom / Hurricane (special property)