There are several characteristics that make this 5 inch float special.

First, there is an amazing drip of glass that frozen in time.  I call it an 'Icicle Drip'.  It's an unusual wanna be spindle.

Next, this float has an undocumented mark.  It's comprised of three separate symbols.  It begins with a symbol similar to Tokui on the right side, a Sa in the middle, then another Tokui-like symbol on the left.  (I've got another float with this same maker's mark in a perfect stamp.)

There are also some faint amber swirls in the glass.

Plus it has two seal buttons together making for a double seal.  This is probably where all the extra glass came from to make the 'Icicle Drip'.

Add in the desirable 5 inch size, swirling in the glass, and tons of bubbles.  Yeah, this float has a lot going on!

Another one of my favorite floats. 

This float has excellent provenance having come from the ex-Ramon Fulton collection.

This 3 inch float is stamped with WP #127 'Maru Mizu Sa' ㊌ サ maker's mark. 

It's one in the series of 'Sa' marks that were produced by the Sasa Glass Company.

This stamp is a little off center but all points of the symbols are present. 

Double Bubble inside a 6 inch float. 

The inner ball measures 7/8 inch across at its widest. 

It's a nicely netted green float was found in northern Japan.

This float has excellent provenance having come from the ex-Ramon Fulton collection.

WP #17 'Ao' 青, which means 'blue.

It's stamped on the seal of a 5 inch float.

This float has excellent provenance having come from the ex-Ramon Fulton collection.

Authentic Japanese glass fishing float with mark WP #3 'Kita' 北 or more commonly known as FF.  It's the company trademark for Hokuyo Glass Company.

It has a well-centered stamp on the seal button.

This float comes in one of my favorite sizes 7 inches.  I like these 7 inch floats because they display so well.  It measures 22 1/2 inches around.

Excellent provenance having come from the ex-Ramon Fulton collection.

Extremely rare spindle with a loop.   The loop is clearly visible at the bottom of the picture. 

This is a complete free standing spindle from top to bottom.  It's a little hard to photograph because it's a fine spindle that's hair thin in the middle.

Truly a one-of-a-kind float.

Found in Hawaii.

A single barnacle remnant on a netted 3 1/2 inch float.

The barnacle may have grown through the net.

Found in Hawaii.

Classic Blue Nubbin on a 3 inch float. 

This float was found in northern Japan.

This float has a fine free standing spindle running from the seal button to the base. 

This authentic 3 inch glass fishing float was found on Hokkaido Island, Japan.

This 3 1/4 inch float has a nice example of the maker's mark WP #109. 

This mark has the kanji symbol for 'master' 生 inside of a star.

Found on Hokkaido Island, Japan.

This Blue Dot float has blue swirls in the seal button. 

Unusual to see a blue seal on a forest green colored float.  I'm not sure why but that's been my experience. 

Blue dot's are also not common in this 5 inch size.

Found on Hokkaido Island, Japan.

This is a 3 1/2 float with the large version WP #24 'Shi' シ or 'Smiley Face'.

Found by Paul Umlauf in the Aleutian Islands in Alaska.