From the table above, it can be seen that a vessel/establishment with a complement less than 500, would not have a 'Gallon' or 'Quart' funnel. 

Funnels by Complement

                                             1,100 and           800 to           500 to          250 to        under 250

                                             above               1099              799              499

Gallon

         1                  1               1          -       -    
Half Gallon1111        1       
Quart111--
Pint111       1        1

Not all ships / establishments would be issued with a full set of four funnels.

The Admiralty Victualling Manual provides a reference for the size of funnels carried by any particular unit in relation to the man size of the unit, as detailed below.

 

Vocabulary and Nato numbers for Royal Navy rum funnels.

Gallon

52482

7330 99 129  2569

Half Gallon

52484

7330 99 129  2671

Quart

52486

Pint

52488

The set of funnels were likely kept in the 'Spirit Room'. The image left, shows a 'Half Gallon' funnel in a 'Barricoe'.

Neat spirit would be drawn from a rum cask, using a pump, measured, and then using the funnel, poured into the Barricoe.

The Barricoe was then locked and used to transport neat spirit from the Spirit Room to the location where it would be mixed with water and issued as Grog. 

NATO 13 digit stock number for a 'Half Gallon' funnel.

The image above, shows a 'Half Gallon' funnel with a NATO, 13 digit, stock number:     P&S  1967  7330  99  129  2671. 

P&S being the manufacturer and 1967 the year of manufacture. The 'Broad Arrow' is also impressed, denoting that the funnel is Government Property.

( It was not possible to get all of the digits into the same image, as they are impressed around the funnel ).

Vocabulary number for a 'Quart', Royal Navy rum funnel.
'Tinning' to the inside of the funnel.                          'Nesting' of the set. 

From the early fifties, funnels were marked with a 'Vocabulary' number - a stores identification number.

The Vocabulary number for a 'Quart' funnel can be seen left - 52486.

The inside of the funnel - ( bowl, polyhedron and tube ), is 'tinned' to prevent reaction between the spirit and the copper of the funnel.

The image below left shows the 'tinning inside the funnel', the inside of the polyhedron can be seen clearly.

Although the funnels could be indivually hung, they may also be 'nested' as a set, as shown in the image below right.

Polyhedron between bowl and tube.                         Hanging hook.
'Quart' Royal Navy rum funnel.
The full set of Royal Navy copper rum funnels.
 

The two images above show the full set of copper funnels used for the Royal Navy rum ration.

The set comprised four sizes, 'Gallon', 'Half gallon', 'Quart' and 'Pint'.

The Admiralty Victualling manual however, lists the 'Half Gallon' as 'Two Quart'.

The 'Pint' and 'Quart' funnels are two piece construction,   bowl / '3 sided pyramid' and tube, whereas the 'Half Gallon' and 'Gallon' are three piece, bowl, separate 'three sided pyramid' and tube.

The 'three sided pyramid' or polyhedron arrangement, on the underside of the bowl of the 'Half Gallon' funnel is shown in greater detail, in the image below, left.

The polyhedron arrangement gives three points of contact in an opening, leaving the user with both hands free.

Each funnel has a brass wire hanging loop, captive in a fold of copper plate, and attached to the bowl of the funnel by a single copper rivet, as shown in the image below, right.