From Gosuinus Erkelens (unpublished)
Chatham near Middletown Connecticut 1 May 1787.

May it please your Excellency

With due respect to offer your Exelency a Small Sample of a mine in my possession since my arival in this Country: and Which after many obstacles has rendrend it felt Worthy the attention from hence to China: Which 13 Years ago I little expected: the Oar is Cobalt of which the Chinease made use to paint the China with; Chambers Dictionary gives a discription of it. And having obtained by a Steady perseverance the knowledge of its Value, as well as the Channells for a Markett: with the Assistance of such caracters as have America at heart induces me to be so very free, as to adress my self on the Subject to your Exellency: and nothing but a simphatizing feeling of What this Country has undergo during the War: civily entitles me to that great freedom, and more so, on account of having been burnd out: and plundered out at St. Eustatia by Rodney by Which I came indebted in Europe: and as a Dutch Marchand may greatest pleasure to pay them: I humbly entreat may the more Apologize for my Liberty.

To my knowledge there is not an other Cobalt mine discovered in these States. The One in Saxony now worn out Was under particular protection by the late prussian King and this Cobalt is been aproved of 12 Years ago: by the United Netherland East India Company to Whom I shipped a quantity last Week and by the discovery I have made by 3 ships from N York to China, I find by proper encouragement from such eminent Caracters as Who are Willing to lift up America under our present but temporary difficulties it to be my indispensable duty for my selff and Country to communicate the Same.

I Most Humbly request Your Excellency to introduce it to the Gentleman treading with the Indias from Your Respective State, and any Correspondence on the Subject Will be either by letters or personall apearance be answerd: and as Your Exellency having an impartiall intrest in the Wellfare of all the States may by that prove a Mutual benefit.

Mr: Beach Your respective son in Law: who was post Master Generall during the War had the honor to be acquainted with.

I also beg leave to mention to Your Exellency that in the beginning of the War I was in Correspondence in conjunction with my Most Worthy friend the late His Exellency Gov. Trumbull With the late Baron oder Capellen Pol of Darenter in Orenyful and that, he send me a letter which he Wroot to Your Exellency in Which it apeared that the Baron was Worry he did not received no answer: but at the Same time thought that Your Exellency had wise reason for not so to do; Baron ndr. Capellen was allmost the means of Stopping the demand of the Brittish King for the Scotch Brigade besides opening the Eyes of his fellow Creatures to keep the Tennants of the Nobles on drudging days contrary to Law since the Year 1730: the discovery has trown the Baron in a Lawsuit by the Nobles for Injury; and by troubles overcome because he was faithfull.

Whould Your Exellency never have received the Baron’s letter can if requested always send a Coppy.

I most humbly request Your Exellencys protection of my Cobalt mine as it is for the present after long Suffering my only subsistance.

Having the honour to be with the greatest respect: and Sincere Wishes for the continuance of Your Exellencys Life and health Subscribe my selff Your Exellency’s Most Obedient and Most Humble Servant

Gosrunus Erkelens

To his Exellency Benj: Franklin.
Endorsed: Mr. Erkelens.
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