[ANSTHRLD] Field only device

[Doug Bell]

The only problem is they can have unexpected conflicts which defy common
sense.  Field only is listed in the ordinary under F - Field Only at the end
of the long list of Field Divisions.

Conflicts have to be checked there and against that same field under the
perpheral ordinaries - bordure, orle, chief, base, tierce etc.

RFS.X.4.a.iiii. Field-Primary Armory - If neither of two pieces of armory
being compared has charges, or if each has the same uncharged peripheral
ordinary, they may derive greater difference from changes to the field. Such
armory will be called field-primary armory . 
For the purposes of this rule the peripheral ordinaries are the chief, the
bordure, the base (including the point pointed), the quarter, the canton,
the gyron, the orle, the double tressure, and flaunches. 
(a) Substantial Change of Partition - If two pieces of field-primary armory
have substantially different partitions, they are considered sufficiently
different and do not conflict, irrespective of any other similarities
between them. 
Any divided field is substantially different from any plain field: Per pale
azure and vert is substantially different from Azure . Any two of the
following partitions are substantially different from each other except the
pairs per fess and barry , per bend and bendy , per pale and paly , per bend
sinister and bendy sinister , and per chevron and chevronelly : per fess ,
per bend , per pale , per bend sinister , per saltire , per chevron,
quarterly , checky , lozengy , gyronny (of any number of pieces), barry ,
bendy , paly , bendy sinister , and chevronelly . Checky is substantially
different from all other grid-like partitions ( i. e. , those formed by two
sets of parallel lines, like lozengy and barry-bendy ); these other
grid-like partitions are not substantially different from one another. Barry
and per pale argent and vert is substantially different from Checky argent
and vert , but it has only a clear difference from Bendy and per pale argent
and vert . Per chevron Or and gules is not substantially different from
Chevronelly Or and gules , nor is Per pale wavy purpure and argent
substantially different from Paly wavy argent and purpure , though in each
case there is a clear difference between the fields. 
(b) Complete Change of Tincture - If the fields of two pieces of
field-primary armory have no tinctures in common, they are considered
completely different and do not conflict, irrespective of any other
similarities between them. 
The ermine furs and their variants are considered to be different tinctures,
so Per bend ermine and azure is completely different from Per bend erminois
and gules and from Per bend argent ermined gules and sable . The addition of
a field treatment is also a change of tincture, so Per fess argent and gules
is completely different from Per fess argent masoned gules and sable . 
(c) Other Field-Primary Armory - In any case, independent changes to the
tincture, direction of partition lines, style of partition lines, or number
of pieces in the partition may be counted separately when comparing two
pieces of field-primary armory. 
There are two clear differences between Per chevron argent and azure and Per
pale nebuly argent and azure . 

They are a bit different to conflict check but it can be done.

Magnus