Mec Britaniayi erbemni 13 gaghutnery 13 spitak ev karmir sherterov, isk AMN 50 nahangnery: 50 astghov xorhrdanshogh AMN nerkayis droshy steghcvel e Lankasteri mijnakarg dproci patmutyan dasyntaci shrjanakum:

Ayn 1958 tvakanin nkarel e hishyal mijnakarg dproci 17-amya ashakert Robert G. Hefty, vorn ir steghcagorcutyan hamar «2» gnahatakani e arzhanacel: Hefty ktratel e ir papikin u tatikin patkanogh hin droshy ev drancov steghcel e ir tarberaky: Nra usucichy: Stenli Phraty, tesnelov ashakerti steghcagorcutyuny, katakov asel e, te ete AMN Kangresn ynduni droshi dizayny, apa inqy kphoxi ir nshanakakac gnahatakany: Kongresakan Uolter Melleri arajarkutyamb: 1959 tvakanin yndunvel e orinagicy:

Hefty naev nkarel e 51 – 60 astgherov droshner, ev dranc heghinakayin iravunqy pashtpanvac e ar aysor:

Erb AMN Kongresy hastatel e patanu naxagcac droshy vorpes AMN petakan drosh, usucichy katarel e ir xostumy ev «2» gnahatakany dardzrel e «5»: