I'm not sure I can be of much help but the first two are star tips. I got out my Wilton Tip book and couldn't find the other two.
Is it possible the the 594 is actually a 59 degree?
I am sure there is someone on here with lots more knowledge that will let you know the answer.
They are:
74 - a leaf tip to order it in wilton should be item number 402-R-74
78 -is a specialty tip item number 402-R-78
177 -is a drop flower tip however I did not find it on the wilton website but it can be found at www.sugarcraft.com
594 -I cannot find this one anywhere but it quite possibly is 59 petal tip with item number 402-594
Hopefully this will help.
They are:
74 - a leaf tip to order it in wilton should be item number 402-R-74
78 -is a specialty tip item number 402-R-78
177 -is a drop flower tip however I did not find it on the wilton website but it can be found at www.sugarcraft.com
594 -I cannot find this one anywhere but it quite possibly is 59 petal tip with item number 402-594
Hopefully this will help.
the 177 tip says wilton and it also says korea on it, thanks...I'll look at that website.....it may be an older tip......some of my tips are older ones...their writing is a little different on them
Thanks again, everyone!!!
maybe you could email wilton and see what they say.
Okay here is a list that I managed to pick up from somewhere 
Hope it helps!
USES OF TIPS
01-12 ROUND TUBES-WRITING, STRINGWORK, FIGURE PIPING, CORNELLI
13-22 OPEN STAR TUBES-STARS, BORDERS, FIGURE PIPING
23-35 CLOSED STAR TUBES; DEEP CUT (CAN BE OPENED FOR REALLY PRETTY STARS OR SHELLS (ALSO MAKE DROP FLOWERS)
32-199-362-363-364 THESE ARE OPEN STAR TUBES WITH FINELY CUT TEETH ( TULIPS-IRIS-GERANIUMS)
501-508-506-502-504 STELLAR OPEN STAR; EACH HAS 10 SHARPLY CUT TEETH CURVED SLIGHTLY INWARD FOR CLEAR, WELL DEFINED FORMS USE FOR SHELLS, STARS, DROP FLOWERS
55&57 ARE OVAL TUBES WRITING ON A LARGE CAKE; THEY ADD DIMENSION TO WRITING
41-42-43 TWO HOLE TIPS;STRINGWORK
89 THREE HOLE STRINGWORK
234&134 MULTIPLE HOLE (LARGE) SHAGGY MUMS; GARLANDS
133&233 SMALL MULTIPLE HOLE (GRASS)
49-50-51-52-53-54-77-78 THESE ARE STAR-CUT CROSS TUBES, THEY PIPE SHARPLY CUT FORMS (REALLY GORGEOUS, DIFFERENT BORDERS AND SWAGS)
88-87 STAR WITH SCALLOPS
98 HALF STAR TUBE
105&110 SQUARE CUT TEETH
96 SWIRLED CUT TEETH; DROP FLOWERS AND BORDERS
320 & 347 FLUERS-DE-LIS AND DROP FLOWERS
71-76 STAR CUT WITH ASYMMETRICALLY-CUT TEETH; COMPLEX SHELLS, BORDERS
THERE ARE MANY, MANY DROP FLOWER TUBESALL THE OPEN AND CLOSED STAR TUBES; 320-49-54-77-96
SOME OF THE DROP FLOWER TUBES HAVE THE CENTER POST; SOME DO NOT! 106-140-217-131-193-109-190-191-108-177-135-129-107-225-224
BOLD BIG DROP FLOWERS 194-2C-2D-2E-2F-1B-1C-1E-1F-1G
LEAF TUBES 65S-66-67-68-69-70 CAN ALSO BE PETALS, SUCH AS FOR LILIES
ESSEX LEAF TUBES: 349-352-326-355 SUPER LARGE: 112-113-114-115 ALL ARE GREAT FOR INSIDE RUFFLE BORDERS!
44-45-46-47-48-150-3272B-1D STRAIGHT RIBBON TUBES
79-80-81 SMALL CURVED RIBBON TUBES;LILY OF THE VALLEY, DAISIES-401-402 CURVED RIBBON TUBES LARGE
GIANT TUBES: 127R-403- RIBBON
1D-789 STRAIGHT RIBBON TUBES (789 ALSO CAKE ICER TUBE)
353 BORDERS
172-4B-195-6B-8B GIANT OPEN STAR
508-1C-1B-1G-1E-1F GIANT CLOSED STAR
2A & 1A GIANT ROUNDS
136 CANDLE HOLDER
99-100-339 GROOVED SHAPES
340 DECORATIVE STARS
114 & 115 GIANT FLAT LEAF
83 & 85 SQUARE AND RECTANGLE
62-63-64 SHELL/RIBBON COMBO; LEFT-HANDED, WORK RIGHT TO LEFT
I graphed all the Wilton tips listed on their site (as I found in my hobby store some of the ones she carries are not listed, and probably really old and no longer made) - done in Word originally and then saved as jpg- Im working 2 jobs now, no energy to tweak and look perdy, sorry. Hope you can forgive LOL- so I just tossed it onto a geocities page http://www.geocities.com/oceanspitfire/mycakes.html
As you can see by the graph, the tips are in order numerically by column
( I also have a row on the bottom for my own printed out copy that reads 'I OWN' so I have marked down which ones I have and when I go shopping I can consult and not double up that way lol)
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